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Finding the Fourth Proportional to 418,452.81, 577,491.72 and 234,708.63

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Solution

The fourth proportional to 418,452.81, 577,491.72 and 234,708.63 is: 323,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,452.81 : 577,491.72 = 234,708.63 : x
  2. Step 2: Convert to fraction form
    418,452.81/577,491.72 = 234,708.63/x
  3. Step 3: Cross multiply
    418,452.81x = 577,491.72 × 234,708.63
  4. Step 4: Simplify right side
    418,452.81x = 135,542,290,437.54
  5. Step 5: Solve for x
    x = 135,542,290,437.54/418,452.81
  6. Step 6: Final answer
    x = 323,912.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.